By heeling the boat to leeward and/or sheeting in the mainsail you can turn the boat into the wind. Similarly, by heeling the boat on top of yourself and/or sheeting in the jib you can make the boat bear away.
When sailing without using the rudder, raise the centreboard by one-third. This reduces the heeling and turning forces by raising the centre of lateral resistance and moving it back.
If the centreboard is lost or damaged you will need to use other methods to help the boat point to windward and minimise leeway. The easiest way is to move your weight as far forwards to the bow as possible, sinking the ‘V’ section down to act as an improvised board. The boat will not point as high and will make greater leeway, but some progress to windward is possible using this technique. You can heel the boat slightly to leeward which will help drive it towards the wind. Consideration must also be given when tacking due to having a reduced pivot point – you can keep the jib on its original side for longer to help bring the bow through the wind.